// Copyright 2018 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package com.google.firebase.database.core.utilities;

public class OffsetClock implements Clock {
  private final Clock baseClock;
  private long offset = 0;

  public OffsetClock(Clock baseClock, long offset) {
    this.baseClock = baseClock;
    this.offset = offset;
  }

  public void setOffset(long offset) {
    this.offset = offset;
  }

  @Override
  public long millis() {
    return baseClock.millis() + offset;
  }
}
